, Volume 55, Issue 2, pp 305-309
Date: 21 May 2009

Large temporal window contrast measurement using optical parametric amplification and low-sensitivity detectors

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To address few-shot pulse contrast measurement, we present a correlator coupling the high gain of an optical parametric amplification scheme with large pulse tilt. This combination enables a low sensitivity charge coupled device (CCD) to observe features in the pulse intensity within a 50 ps single-shot window with inter-window dynamic range >107 and <0.5 mJ input energy. We also consider use of optical densities to boost the CCD dynamic range within a single temporal window.